CA937285A - Methods and apparatus for investigating earth formations - Google Patents

Methods and apparatus for investigating earth formations

Info

Publication number
CA937285A
CA937285A CA098502A CA98502A CA937285A CA 937285 A CA937285 A CA 937285A CA 098502 A CA098502 A CA 098502A CA 98502 A CA98502 A CA 98502A CA 937285 A CA937285 A CA 937285A
Authority
CA
Canada
Prior art keywords
methods
earth formations
investigating earth
investigating
formations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA098502A
Other languages
English (en)
Other versions
CA98502S (en
Inventor
A. Schuster Nick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Application granted granted Critical
Publication of CA937285A publication Critical patent/CA937285A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • G01V3/265—Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2644—Adaptations of individual semiconductor devices to facilitate the testing thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
CA098502A 1969-12-03 1970-11-18 Methods and apparatus for investigating earth formations Expired CA937285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88179369A 1969-12-03 1969-12-03

Publications (1)

Publication Number Publication Date
CA937285A true CA937285A (en) 1973-11-20

Family

ID=25379227

Family Applications (1)

Application Number Title Priority Date Filing Date
CA098502A Expired CA937285A (en) 1969-12-03 1970-11-18 Methods and apparatus for investigating earth formations

Country Status (18)

Country Link
US (1) US3638105A (tr)
JP (1) JPS5029402B1 (tr)
AT (1) AT316890B (tr)
CA (1) CA937285A (tr)
DE (1) DE2057632B2 (tr)
ES (1) ES386094A1 (tr)
FR (1) FR2072642A5 (tr)
GB (1) GB1335357A (tr)
HU (1) HU164110B (tr)
IE (1) IE34763B1 (tr)
NL (1) NL7017655A (tr)
NO (1) NO132884C (tr)
OA (1) OA03533A (tr)
PL (1) PL70847B1 (tr)
SE (1) SE368283B (tr)
SU (1) SU679165A4 (tr)
TR (1) TR16826A (tr)
ZA (1) ZA707803B (tr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5465254U (tr) * 1977-10-12 1979-05-09
US4523148A (en) * 1980-10-20 1985-06-11 Gearhart Industries, Inc. Method and apparatus for determining the spontaneous earth potential log from downhole gradient measurements
US4980682A (en) * 1989-07-31 1990-12-25 Atlantic Richfield Company Method of reducing noise in a borehole electromagnetic telemetry system
US5008625A (en) * 1989-11-01 1991-04-16 Schlumberger Technology Corporation Method and apparatus for logging and displaying a two dimensional image of spontaneous potential
US5239267A (en) * 1991-05-15 1993-08-24 Halliburton Logging Services, Inc. Method for improving the accuracy of dip determination using adjustable high pass filters
US5402069A (en) * 1993-06-18 1995-03-28 Schlumberger Technology Corporation Spontaneous potential measurement apparatus connected between metallic housings of a wellbore apparatus for measuring the spontaneous potential of an earth formation
GB2379508B (en) * 2001-04-23 2005-06-08 Computalog Usa Inc Electrical measurement apparatus and method
DE10206521B4 (de) * 2002-02-14 2005-03-03 Progeo Monitoring Gmbh Vorrichtung und Verfahren zur Messung von Potenzialen im Erdreich
US8302687B2 (en) * 2004-06-18 2012-11-06 Schlumberger Technology Corporation Apparatus for measuring streaming potentials and determining earth formation characteristics
US7520324B2 (en) * 2004-06-18 2009-04-21 Schlumberger Technology Corporation Completion apparatus for measuring streaming potentials and determining earth formation characteristics
US7466136B2 (en) * 2004-06-18 2008-12-16 Schlumberger Technology Corporation While-drilling methodology for determining earth formation characteristics and other useful information based upon streaming potential measurements
CN110989018A (zh) * 2019-12-17 2020-04-10 山东科技大学 基于自然电位法的采空区火源位置探测系统及探测方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728047A (en) * 1952-06-13 1955-12-20 Schlumberger Well Surv Corp Methods and apparatus for logging spontaneous potentials in wells
US3268801A (en) * 1963-04-30 1966-08-23 Texaco Inc Apparatus having a pair of spaced electrodes for measuring spontaneous potentials in a well bore while drilling
US3373349A (en) * 1965-07-14 1968-03-12 Schlumberger Technology Corp Well logging methods and apparatus for solving the potential reference problem in electrode type investigating apparatus

Also Published As

Publication number Publication date
US3638105A (en) 1972-01-25
FR2072642A5 (tr) 1971-09-24
GB1335357A (en) 1973-10-24
DE2057632A1 (de) 1971-06-24
OA03533A (fr) 1971-03-30
ES386094A1 (es) 1973-12-16
HU164110B (tr) 1973-12-28
DE2057632B2 (de) 1972-01-27
PL70847B1 (tr) 1974-04-30
SE368283B (tr) 1974-06-24
AT316890B (de) 1974-07-25
NO132884C (tr) 1976-01-21
IE34763B1 (en) 1975-08-06
TR16826A (tr) 1973-07-01
IE34763L (en) 1971-06-03
NO132884B (tr) 1975-10-13
ZA707803B (en) 1971-09-29
SU679165A4 (ru) 1979-08-05
NL7017655A (tr) 1971-06-07
JPS5029402B1 (tr) 1975-09-23

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